monotremata

@monotremata@kbin.social

Este perfil es de un servidor federado y podría estar incompleto. Explorar más contenido en la instancia original.

monotremata,

I still use reddit for some of the niche community-based subs that haven't been replicated here, like What's That Book?, a place where a while bunch of readers and librarians try to help people find books they remember a bit about, but not the title or author. That one is a lot of fun because people are so excited when they get an answer, and because the community is strong enough that most people do get answers. It seems like it would be hard to recreate that experience here. Similar is the Learn Math subreddit, where people ask about things they aren't understanding or can't figure out in their math studies, at pretty much any level, and the community comes up with multiple explanations and thoughts. The variety of questions and the in-depth answers are remarkable.

Generally it just feels a lot smaller and a fair bit more homogenous here. I like this site too, but it kinda feels like what reddit used to be is just gone now.

monotremata,

Fun fact: there's a name for the phenomenon of instantly recognizing the number of objects when it's fewer than five. It's called "subitizing."

There's a pretty interesting overview of what we know about math on the brain (or at least knew as of its writing) in the book "Where Mathematics Comes From" by Lakoff and Nuñez.

A Whiff of Genius: Simple Fragrance Method Boosts Cognitive Capacity by 226% (scitechdaily.com) en

Sweet Smell of Success: Simple Fragrance Method Produces Major Memory Boost When a fragrance wafted through the bedrooms of older adults for two hours every night for six months, memories skyrocketed. In fact, participants in this study by neuroscientists from the University of California, Irvine (

monotremata,

Y'know, I had an idea about this back when I was in college: scented highlighters. Use a few different scents for different categories of information, and test whether it improved recall over using regular highlighters. I never tried to follow through on it.

monotremata,

Of course! One of the only things I actually did do on that project was get a box of Mr. Sketch markers and look at which ones might be usable as highlighters. The main reason it fell apart was that I didn't really know enough people who did highlighting as a study technique. I knew they existed because I kept buying used textbooks that turned out to be covered in highlighting, but it must be a relatively niche group that does it.

monotremata,

Yeah. Honestly I was more interested on whether it could actually work, rather than whether I could sell it. It'd be easier to sell than to actually evaluate :P

monotremata,

The Cambrian had a bunch of strange creatures like this. There was the Opabinia, which had five eyes and a mouth on an arm. And there was the Anomalocaris, which is kinda similar to the new one they discovered (at least from the perspective of a non-scientist just looking at the artists' renditions), but with only two eyes and an order of magnitude bigger.

Water harvesting in Death Valley: Conquering the arid wilderness (phys.org) en

Korea is regarded as a "water-stressed nation." Although the country receives an annual precipitation of approximately 1,300mm, it is characterized by concentrated periods and specific regions, thereby giving rise to challenges stemming from water scarcity. The lack of drinking water extends beyond mere inconvenience, posing...

monotremata,

It sounds to me like it's pretty similar to how home oxygen concentrators work, but with an MOF instead of a zeolite, and driving out the adsorbed material via increased temperature rather than decreased pressure. MOFs are pretty comparable to zeolite in cost, and both can be used as molecular sieves, as in this case. Maybe you can find a video on oxygen concentrators that would help you understand it?

One difference here is that in the oxygen concentrator, the output product is the air, but with the nitrogen sequestered out; here, the output product is the water sequestered from the air. But this leads me to think that maybe this tech could also actually be used for air dehumidification, which could drive down the energy use of air conditioners. That could be another big win, since air conditioning is a major use of fossil fuel energy and contributes significantly to climate change, which is part of what's driving the drinking water shortages in the first place.

monotremata,

I dunno. It's hard to separate the two roles of mods. One role is in preventing abuse--posting illegal content, hate speech, etc. But another role is in policing the content for what does and does not fit a forum's purpose. You can do the first and keep section 230 protection, but the second is inherently and inextricably editorial in nature, and you can't do that without losing protection. And I don't think the lines between these are well-enough defined to enable you to make them two separate jobs without getting into trouble. Like, a lot of communities allow a little self promotion, but not spam. Managing that is a ton of work, but probably can't be a paid role because it's a judgment call. That sort of thing.

It's frustrating, because it's pretty clear at this point that this is one kind of web site that we really want to have exist. But the laws around this are really janky, and trying to revise them is a problem because the debate around them is even stupider than the laws themselves.

monotremata,

I mean, what this whole situation has shown us is the fragility that our reliance on that site creates. It would be a real mistake for us to go back at this point, because it means they (or their successors if they manage to actually sell the sinking platform) will eventually pull this stuff again. Trying to build a replacement community is a very difficult thing because of network effects, but this dramatic fracture has given us the opportunity to maybe pull it off.

So I see this as an attempt to create further disruption that prevents one of these alternate sites from solidifying as a true replacement, and little else.

monotremata,

These have been in the US for a while now. I remember when they first turned up in Lake Michigan. This isn't a great article, but it's from that time period: https://www.nbcnews.com/id/wbna6254302

It took a while but I finally got my Reddit data export (kbin.social) en

It took several weeks but I finally got my Reddit data export for my account. If it wasn't already obvious, the direct messages there are not encrypted in any meaningful way. One interesting variable I found was in the file named "statistics", there's a variable named "is_deleted" which is set to false. This makes me wonder if,...

monotremata,

I got mine today too (well, apparently it was ready yesterday, but I didn't download it until today) and I was struck that the "chat history" doesn't have all my chats in it. I was in particular looking for the exchanges I'd had with a representative of a company working on a VR headset. I guess maybe the other party deleted them. But I found at the same time that the chat widget on the site no longer has any of my chats in it. It just has a "start a new chat!" button. Super weird. The site really feels to me like it's getting more janky.

monotremata,

Oh, thanks. I had totally missed that. That probably explains the widget on the site. And, as I say, it's possible the other person had deleted the chat I was looking for.

How do I subscribe to 3D Printing from kbin? (kbin.social) en

The 3D Printing Subreddit has moved to forums.rhombik.com/c/3d_printing . But I can't seem to find it in kbin's search. There was a previous thread asking a similar question about another migrated sub, but based on the solution there, my best guess was that I should go directly to...

monotremata,

Thanks for replying. Does that mean it's just a backend thing? There's nothing normal users can do to affect this, it's just going to take time?

monotremata,

I still have an account there, though I'm not using it much and am considering my options for data takeout and deletion. It feels pretty different to me, though, honestly. I think seeing it as though "things are dying down" is short-sighted. With the mod teams wiped, BotDefense gone, and so forth, I don't think things are going to stay "back to normal" for long, even if you think they're there at the moment, which I kinda don't.

That said, I'm not at all certain the fediverse can take its place. It'll depend a lot on how many folks start to use it. It's an uphill battle.

But Reddit, well, I expect it to head downhill pretty badly.

monotremata,

I've been wondering whether it'll be possible to make skin-friendly formulations of the sky-cooling paints, which might help with this sort of situation. NightHawkInLight just released a YouTube video about a way to make a version of the pigment using items from the grocery and hardware stores, and the final result was Calcium Carbonate nanospheres. It seems like it should be possible to make a skin-compatible paint from this, much like the titanium oxide based sunscreens, with the advantage that this one would actively cool you by about four degrees centigrade, which is really quite a lot in this kind of scenario.

The video in question: https://youtu.be/KDRnEm-B3AI

monotremata,

Well, clothes made with the right pigments might work in a similar way. But regular light clothes aren't enough in a wet bulb event. Regular light clothes can keep you from getting further overheated due to sunlight, but if the ambient air temperature and humidity is such that you can't get evaporative cooling from your sweat, you're still in trouble. Sky-cooling pigments can cool you below the ambient air temperature by up to 4°C even in direct sunlight, which could be life-saving in certain circumstances.

monotremata,

I wonder. He did need the snow-scattering effect to get the barium-based pigment to work, but it seems like the dense packing achieved by the varied sizes of nanoparticles might suffice for light rejection without that effect. It didn't sound like he re-tested that with the new recipe.

monotremata,

It's been a while since I watched that one. I'll have to give it another look. They were also using the barium pigment, but I can't remember if they used the multiple sizes of nanospheres.

monotremata,

This makes me wonder how robust kbin and lemmy's tools for this sort of thing are. Anyone know?

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